Strain gauge pasting device

Abstract

The utility model discloses a strain gauge pasting device, and aims to improve the pasting efficiency and accuracy of a strain gauge. The device comprises a shell, a glue coating part and a pressing part. The bottom of the shell is provided with a storage cavity used for stacking strain gauges, one end of the storage cavity is a storage opening, and the other end of the storage cavity is a pasting opening. The glue coating part is arranged on the side, close to the pasting opening, of the bottom of the storage cavity and used for coating the bottom face of the strain gauge on the bottommost layer with glue. The downward pressing part is arranged above the pasting opening and used for pressing the strain gauge out of the pasting opening. When the device is used, the bottom surface of the device is tightly attached to the surface of concrete, the pressing part is continuously pressed down, the end parts of the strain gauges are pressed out, the device is pulled in the pasting direction, meanwhile, the glue coating part is coated with glue, and the strain gauge at the bottommost layer is fixed on the surface of the concrete under the action of adhesive force and friction force. The device improves the pasting efficiency and quality, reduces the labor intensity, and is suitable for the occasions of bridge load tests and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection technical field especially relates to a strain gauge sticking device. BACKGROUND

[0002] In the process of bridge load test, in order to monitor the strain condition of bridge structure under stress state, usually need to stick strain gauge to the concrete surface. The traditional strain gauge sticking method often relies on manual operation, including manual coating glue, positioning strain gauge and applying pressure to ensure that strain gauge and concrete surface are closely attached. Because needing to manually coat glue first, then manually press and attach strain gauge, the process is more complicated and time-consuming, especially for the large bridge load test needing a large number of strain gauge sticking, traditional method is not only inefficient, and the labor intensity is big.

[0003] Therefore, the market urgently needs a device that can efficiently stick strain gauge to improve the efficiency of strain gauge sticking and reduce the labor intensity of the operator. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a strain gauge sticking device to solve the technical problem of low efficiency in traditional manual strain gauge sticking.

[0005] To achieve the above object, the utility model adopts the technical scheme of providing a strain gauge sticking device, which comprises:

[0006] A housing is provided with a storage cavity at the bottom, and strain gauges are stacked in the storage cavity. One end of the storage cavity is provided with a storage port, and the other end of the storage cavity is provided with a sticking port.

[0007] A glue coating part is arranged on one side of the bottom of the storage cavity close to the sticking port. The glue coating part is used to coat glue on the bottom surface of the bottom layer strain gauge in the storage cavity.

[0008] A pressing part is arranged above the sticking port. The pressing part is used to press the strain gauge out of the sticking port.

[0009] In one embodiment, the glue coating part comprises:

[0010] A glue storage cavity is arranged at the bottom of the storage cavity. The glue storage cavity is preloaded with adhesive glue. The top of the glue storage cavity is provided with an opening.

[0011] A glue coating wheel is rotatably arranged in the glue storage cavity. The top of the glue coating wheel extends out of the top opening of the glue storage cavity. The strain gauge is pressed on the top of the glue coating wheel.

[0012] In one embodiment, the pressing part comprises:

[0013] A pressing rod is slidingly arranged on the shell;

[0014] A pressing wheel is rotatably arranged at the bottom of the pressing rod;

[0015] An elastic member is arranged between the shell and the pressing rod.

[0016] In one embodiment, a distance measuring part is further included, which comprises a battery arranged inside the shell and a distance measuring instrument arranged on the shell near one side of the sticking port, and the battery is connected to the distance measuring instrument through a wire.

[0017] In one embodiment, a sticking channel with a thickness same as that of a piece of strain gauge is reserved at the bottom of the shell near the sticking port.

[0018] The one or more technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0019] The strain gauge sticking device provided in the embodiments of the present application can realize automatic gluing and sticking of the strain gauge through the synergistic effect of the pressing part and the glue coating part, and the sticking work of the strain gauge can be quickly completed by simply pressing the pressing part and pulling the device along the sticking direction, so that the sticking efficiency is greatly improved. Moreover, a plurality of strain gauges are stacked in the storage cavity, and the continuous sticking of the strain gauges can be realized by continuously pressing the pressing part and pulling the device, so that the working efficiency is further improved, and the device is particularly suitable for large-scale bridge load tests that require a large number of strain gauges to be stuck. The strain gauge sticking device is easy to operate and does not require complicated manual operation, so that the labor intensity of the operator is greatly reduced, and the comfort and efficiency of the work are improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 The external structure diagram of the strain gauge sticking device provided in the embodiments of the present application is shown in the figure;

[0022] Figure 2 The sectional view of the strain gauge sticking device provided in the embodiments of the present application is shown in the figure;

[0023] Figure 3 A schematic view of the strain gauge sticking device provided by the embodiment of the present application when sticking a strain gauge is shown in the figure.

[0024] Figure 4 To Figure 1 A partial enlarged schematic view at A in the figure.

[0025] In the figures, each reference sign represents the following:

[0026] 1, housing; 2, glue coating part; 3, pressing part; 4, strain gauge; 5, distance measuring part; 11, storage cavity; 21, glue storage cavity; 22, glue coating wheel; 31, pressing rod; 32, pressing wheel; 33, elastic member; 51, battery; 52, distance measuring instrument; 111, storage opening; 112, sticking opening. DETAILED DESCRIPTION

[0027] The embodiments of the present application will be described in detail below, examples of which are shown in the figures, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0028] In the description of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figures, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0029] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0030] In the utility model, unless another definite provision and limitation, the terms "mount", "connect", "connect", "fix" and so on terms should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two element internal communication or two element mutual action relation. For ordinary skilled person in the art, the above terms can be understood according to the specific meaning of the utility model.

[0031] Please refer to Figures 1 to 4 The embodiment of the application provides a strain gauge sticking device, which comprises a shell 1, a glue coating part 2 and a pressing part 3. The bottom of the shell 1 is provided with a storage cavity 11, the storage cavity 11 is stacked with strain gauges 4, one end of the storage cavity 11 is provided with a storage opening 111, and the other end of the storage cavity 11 is provided with a sticking opening 112. The glue coating part 2 is arranged on one side of the bottom of the storage cavity 11 close to the sticking opening 112, and is used for coating glue on the bottom surface of the bottommost strain gauge 4 in the storage cavity 11. The pressing part 3 is arranged above the sticking opening 112, and is used for pressing the strain gauge 4 out of the sticking opening 112.

[0032] The strain gauge 4 sticking device is used for sticking the strain gauge 4 to the concrete surface to be detected in the bridge load test process. When sticking, the bottom surface of the strain gauge sticking device is only required to be closely attached to the concrete surface to be attached with the strain gauge 4, then the pressing part 3 is continuously pressed down, the end part of the strain gauge 4 is pressed out of the sticking opening 112 by the pressing part 3, until the bottom surface of the bottommost strain gauge 4 in the plurality of strain gauges 4 stacked in the storage cavity 11 is pressed tightly to the concrete surface, at this time, the strain gauge sticking device is pulled along the sticking direction (that is, the direction from the sticking opening 112 to the storage opening 111), the pressing of the pressing part 3 and the close attachment of the bottom of the strain gauge sticking device to the concrete surface are maintained in the process, and the glue coating part 2 is used for coating glue on the bottom surface of the bottommost strain gauge 4 in the process. The bottommost strain gauge 4 is fixed on the concrete surface under the action of the adhesion and friction force between the bottommost strain gauge 4 and the concrete surface, and cannot move along the sticking direction with the strain gauge sticking device, so that the strain gauge 4 is slowly pulled out of the sticking opening 112, and is stuck on the concrete surface under the action of the pressure of the pressing part 3 and the glue coated on the bottom, thereby achieving the purpose of sticking the strain gauge 4 to the concrete surface by glue.

[0033] And when the bottommost strain gauge 4 is adhered, the next strain gauge 4 can be pasted by continuously pressing the pressing part 3 and pulling the strain gauge pasting device, so that the strain gauge 4 can be pasted continuously. Since the strain gauge 4 only needs to be pasted by pressing the pressing part 3 and pulling the strain gauge pasting device along the pasting direction, the work of coating glue on the bottom of the strain gauge 4 and adhering the strain gauge 4 can be quickly completed, and the strain gauge 4 can be pasted continuously, thereby greatly improving the adhesion efficiency of the strain gauge 4.

[0034] In one embodiment, the glue coating part 2 includes a glue storage cavity 21 and a glue coating wheel 22. The glue storage cavity 21 is arranged at the bottom of the storage cavity 11, and the glue storage cavity 21 is preloaded with adhesive glue. The top of the glue storage cavity 21 is provided with an opening. The glue coating wheel 22 is rotatably arranged in the glue storage cavity 21, and the top of the glue coating wheel 22 extends out of the top opening of the glue storage cavity 21. The strain gauge 4 is pressed on the top of the glue coating wheel 22.

[0035] When the pressing part 3 presses the end of the strain gauge 4 for pasting, the bottommost strain gauge 4 is slowly pulled out of the pasting opening 112 (the specific principle is described above), and the strain gauge 4 is pressed on the top of the glue coating wheel 22. Therefore, when the strain gauge 4 moves relative to the strain gauge pasting device (in fact, the strain gauge pasting device moves to the right, and the bottom strain gauge 4 does not move horizontally), the friction between the strain gauge 4 and the glue coating wheel 22 will make the glue coating wheel 22 rotate. At the same time, the glue coating wheel 22 continuously coats the glue in the glue storage cavity 21 to the bottom surface of the strain gauge 4, as shown in Figure 3 The specific principle is similar to the ball point of a ball pen, so as to realize automatic coating of glue to the bottom surface of the strain gauge 4.

[0036] In one embodiment, the pressing part 3 includes a pressing rod 31, a pressing wheel 32, and an elastic member 33. The pressing rod 31 is slidably arranged on the shell 1. The pressing wheel 32 is rotatably arranged at the bottom of the pressing rod 31. The elastic member 33 is arranged between the shell 1 and the pressing rod 31. By giving the pressing rod 31 a downward pressure, the pressing rod 31 overcomes the elastic force of the elastic member 33 (spring or elastic sheet), and moves downward until the pressing wheel 32 presses the strain gauge 4 to be tightly attached to the concrete surface. When there is only one strain gauge 4 in the storage cavity 11, since there is relative movement between the strain gauge 4 and the pressing wheel 32, the pressing wheel 32 can change the sliding friction into rolling friction, thereby reducing the friction between the pressing part 3 and the strain gauge 4, and further protecting the strain gauge 4 from being easily worn by the pressing part 3, while reducing the resistance to pulling the strain gauge pasting device.

[0037] In one embodiment, the distance measuring part 5 is further included, the distance measuring part 5 includes a battery 51 and a distance measuring instrument 52, the battery 51 is arranged inside the shell 1, the distance measuring instrument 52 is arranged on the shell 1 and close to one side of the sticking port 112, and the battery 51 is connected to the distance measuring instrument 52 through a wire. The battery 51 is used to supply power to the distance measuring instrument 52, and the distance measuring instrument 52 can be used to help determine the accurate attachment position of the strain gauge 4, so that the attachment position of the strain gauge 4 is more accurate. Specifically, the distance measuring instrument 52 can be an infrared distance measuring instrument or a laser distance measuring instrument, etc.

[0038] As shown in Figure 4 In one embodiment, the bottom of the shell 1 close to one side of the sticking port 112 is reserved with a sticking channel (i.e. the area below the position of the shell 1 where the distance measuring instrument 52 is located), and the thickness of the sticking channel is the same as or slightly greater than the thickness of a piece of strain gauge 4. By setting the sticking channel, when there are multiple pieces of strain gauges 4 in the storage cavity 11, only the lowest layer of strain gauges 4 can pass through during the attachment process, and the upper layer of strain gauges 4 is blocked on the inner wall of the sticking port 112, thereby ensuring that the strain gauge sticking device will sequentially output the strain gauges 4 in order when performing the sticking action, and there will be no phenomenon of multiple pieces of strain gauges 4 being output from the strain gauge sticking device at the same time.

[0039] In addition, when adding the strain gauge 4, the head (the end connected with the wire) of the strain gauge 4 can be stretched from the storage port 111 until the strain gauge 4 is completely put into the storage cavity 11 (as shown in Figure 1 Therefore, the head of the strain gauge 4 that does not need to be stuck to the concrete surface is placed on the left side of the glue coating part 2 to solve the above problem.

[0040] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A strain gauge attaching device characterized by comprising: The strain gauge sticking device comprises: a housing, a storage cavity is arranged at the bottom of the housing, and strain gauges are stacked in the storage cavity, one end of the storage cavity is provided with a storage opening, and the other end of the storage cavity is provided with a sticking opening; a glue coating part arranged on one side of the bottom of the storage cavity close to the sticking opening, the glue coating part is used for coating glue on the bottom surface of the bottommost strain gauge in the storage cavity; a pressing part arranged above the sticking opening, the pressing part is used for pressing the strain gauge out of the sticking opening.

2. The strain gauge sticking device according to claim 1, wherein The glue coating part comprises: a glue storage cavity arranged at the bottom of the storage cavity, the glue storage cavity is preloaded with adhesive glue, and the top of the glue storage cavity is provided with an opening; a glue coating wheel rotatably arranged in the glue storage cavity, the top of the glue coating wheel extends out of the opening at the top of the glue storage cavity, and the strain gauge is pressed on the top of the glue coating wheel.

3. The strain gauge sticking device according to claim 1, wherein The pressing part comprises: a pressing rod slidingly arranged on the housing; a pressing wheel rotatably arranged at the bottom of the pressing rod; an elastic member arranged between the housing and the pressing rod.

4. The strain gauge sticking device according to claim 1, further comprising a distance measuring part, the distance measuring part comprises a battery and a distance measuring instrument, the battery is arranged inside the housing, the distance measuring instrument is arranged on one side of the housing close to the sticking opening, and the battery is connected to the distance measuring instrument through a wire.

5. The strain gauge sticking device according to claim 1, wherein: a sticking channel is reserved at the bottom of one side of the housing close to the sticking opening, and the thickness of the sticking channel is the same as the thickness of a strain gauge. ​

Images